Motor-mounting for player-pianos



C. FREBORG.

MOTOR MOUNTING FOR PLAYER PIANOS.

APPLICATION FlLED JULY 3h I919.

Patented July 26, 1921.

CHARLES rnnnone, OFTKANKAKEE, rnninozs, ASS

COMPANY, OFOHICAGO, ILLINOIS, A. CORPORATION OF ILLINOIS. I

moron-MO NTI G ron rLaYER-r'nmos.

Application filed July 31,

To all whom it may concern." I

Be it known that I, CHARL S Fnneone, a" citizen of the United States, residing atKankakee, in the county of. Kankakee and State of Illinois, have invented certain new and useful Improvements in Motor Mountings for Player-Pianos, of which the following is a specification. 1

This invention relates to improvements in motor mountings'for playerpianos, andhas for its object to provide a construction whereby the main exhausting pump and motor to drive the same may be swung to-- gcther bodily into and out of'operative positionwith respect to a player piano.

Other objects consist in providing such a mounting on which such swinging structure may be secured in operative position against accidental displacement. 5

Still another objectconsists in providing such mounting and adapting the same to a i piano in such wise'as to permit its .ready bodily removal from the piano after. being first swung out of operative position.

Still another object consists inithepeculiar" construction of themotor and pump mounting in the carrying frame. H

These and other oh'ects will be more fully set forth and described in the following specification and shown in the accompanying drawings, in which- Figure 1 is a front elevation of a portion of a player piano, showing my invention applied thereto; and

Fig. 2 is a side elevation of the same.

Like numerals refer to like elements throughout the drawings, in which- 10 designates generally a portion of a player piano structure comprising the upright post 10*, horizontal upper cross bar 10, and horizontal base cross bar 10, sometimes termed the toe-rail. 11 indicates generally a frame comprising the uprights 11 secured together by the cross rods 11 and 11. A spider 11 extends across between the uprights, and also serves to secure them together, said spider being provided with the upwardly projecting portion 11, in which is journaled the shaft 12 and the rotating pulley 12. The shaft 12 is provided with an eccentric crank 12*, on which are journaled connecting rods'13. At the other ends these connecting rods are pivotally attached at 13* to the movable walls 14* of four bellows 1 1. It will be apparent that asthma.

like-see Fig.

a drive pulley 1919. Serial No. 314,525.

pulle 12 will alternately a.

pan'd. and collapse these bellows, the latter to provide the suction. or I vacuumynecessary for the operation of the I being utilized player piano.

The spider 11 atjits outerextremitiesis upturned, as indicated at 11, trunnionsll being provided at each of the extremities.

brackets, 15. provided'with rearwardly extending port1ons:15 slotted at 15 renon T0 i'RIoE & TEEILEUPIANO I Specification of Letters Iatent. July 26', 1921. v

ISecured tofthe base cross bar 10. are the (i j to pro.

vide seats or bearings for'thetrunnions 11 .1

An .electricmotor 17in the construction shownis suspended by means of theflexible strap rods 17 from cross supports21, or the 2-which extend around and .These'strap rods between the cross rods 11*. are threaded at their upper extremities for cally adjusted.

19 and an endless belt 20 which runs around the It will also be obvious 20 as desired.

The uprights 11 of the frame 11 fit loosely into sockets 1O in the horizontal cross bar 1O when in operative position as I term it,

wardly extending lugs 10", to provide for the sockets 10, as shown in Fig. 1. When it is desired to inspect or repair the motor or pump, it is merely necessary to swing the latches 22 out of'position, and swing the frame 11 forwardly, as viewed in Fig. 1, the pump and motor movin upwardly out from the piano structure flout the trunnions 11 -Shouldit be desirable to remgve the motor and pump from the piano, the frame 11 may be swung outwardly, as just described, and then lifted upwardly so that the trunnions 11 will be lifted out of the slots 15'.

Due to the play between the tops of the uprights 11 and the sockets 10, and the mounting of the trunnions in the vertical slots 15 any vibration of the pump, motor,

engagement'by knurled ,nuts 18, by which the posltion ofthe motor: .17;1may be verti- The motor is provided with 1 pulley- 19 and. pulley I 12 to communicate rotation. ofuthje motor. pulley-to the pulley12,-aswill'be obvious.

that adjustment of j thenuts 18 willrvalry the tensionyin the belt vention. V 7

It will be obvious that my invention is 5 susceptible of modifications and; improvements, and I do not therefore wish to be restricted to the form shown beyond the scope of'the appended claims.

What I claim is; 1. In combination, a piano structure comrisin a casin 'a fr'amelocatable therein 23 D) V i 7 an exhauster means, and a motontherefor carried by said frame, said frame being pivotallymounted to move into or out of-said;

casing.

2. n combination, a piano structure comprising a casing,'a frame'locatable therein, an exhauster means, ried by said frame, otally mounted to move into or out of said casing, and means to secure said'frame deg V tachably in said casing. l 1

3. In combination, .a piano; structure comprising upper and lower horizontal bars, a pump and motor carriedthereframe and a by, said frame being pivotally mounted on said upper bar, into engagement therewith, and mea'n's' 'to vmembersfi A V 4. In combination, a piano structure comprisingan upper horizontal bar and'alower horizontal bar, a frame,

' earings;

ceive saidframe, I a motor therefor carframe to sa1d socket, sa1d means comprisln aplvoted latch member. I

said frame being 'piv p a I. In mechamsm'of the class described, a v

secure said frame detachably to said socket and a pump and motor carried thereby, the lowervbar-being 1 provided with bearings, said frame being-Q rovided with trunnions journaled'insaid cross supports, a 1 a I whereof I have subscribed my name.

5. In combination, a piano structure com;

prising an upper horizontal bar and a lower horizontal bar, a frame, a pump and motor vided with trunnions journaled in said bear-Q said upper bar being socketed to rehas and means to secure said ceive said frame,

frame'to said socket.

6. In combination, a piano structure comprising an upper horizontal bar and a lower 1; horizontal bar, a; frame, a pumpand motor carried thereby,-the lower-bar being 'pro- 'vided with bearings, said frame being pro-"- vided with trunnions ournaled 1n sa1d bearsaid upper bar being socketed to reings,

and means to secure said pivoted frame, cross members'carried by therefrom, a pump member "carried by frame, and means operatively connecting":

saidmotor to said pump member, said means said lower barfsocket members carriedby -c0mpr1s1ng an endless. belt.

sa1d frame being movable motor'operatively attached to said exhauster,

V 8. In mechanism of the class described, an' exhauster, a frame comprisingside members,*'cross rods" extending therebetween, crosssupportscarried'by said 'cross rods, a

*and means' to support'said motor comprising members adjustably secured": to said 1 In testimony o-riAnnn's reasons 

